MASS TRANSFER APPARATUS Russian patent published in 1997 - IPC

FIELD: technology of adsorption and chemisorption in food and other industries. SUBSTANCE: in auger type mass transfer apparatus, collector is located in upper part of housing at level of final flight of auger. Spiral surfaces have openings of various diameter in middle part of screw. Incline angle of generating line of upper spiral surface relative to screw axis and helix angle of upper and lower spiral surfaces of solid phase are equal. Spiral strip is fastened over tops of flight edges, thus forming enclosed spiral passage in interflight space in which radial partitions are installed. Holes are made in shaft walls which are located between radial partitions. EFFECT: high efficiency. 2 dwg